Well, I received my Shielder a few weeks ago and was able to ship spares with it luckily. Overall, it's in great condition although there are a few issues to sort. It arrived with dud batteries and it appears during it's quarantine cleaning they managed to bash the tachometer sender wires off, so at first it wouldn't change gear. Both those problems were an instant fix. Some of the electrics aren't working which I'll look into. The braking and steering feel a bit weak but it may just be rusty/oily discs as I've only run it up and down my driveway twice so far. Annoyingly, the quarantine cleaners left it in the rain for a week I'm guessing with the hatches open and bolts removed from the rear tray inspection plates... it arrived with water in it and sadly my spare filters etc were in the rear storage compartment so bits were going rusty and the spare air filters were soggy and spotted with mould.
It now sits in my shed and I plan to give it a thorough service and fix all issues before running it again. Will take the armour off the cockpit so I can get the driver's seat out to respray it too as it's the only bit that looks a little tired.

Thanks for the replies. I suspected there would be no problem as long as the CCA was similar but I had a nagging feeling that maybe a smaller battery wouldn't like being charged by the bigger alternator, ie get charged to fast.
Those Varta J3s are not sold here in Australia. I'm considering the North Star AGM35 due to its compact shape:
https://batteryspecialists.com.au/northstar-pure-lead-12v-60ah-880cca-agm-battery.html

Hello,
my Alvis Shielder's batteries are stuffed (they are the UK6TNMF or UK6TN's). They are an unusual shape (almost square) so to replace them is difficult.... I've been looking at smaller batteries that would still fit in the battery tray. If I stick to the same or larger CCA rating does it matter if the replacements have a smaller capacity (AH rating)? Specifically the originals are 800 CCA and 110 AH and what I have in mind is 880 CCA and 60 AH....
I'm not likely to start the engine multiple times in a row or use power with the engine off.
Thanks in advance for any opinions!
Cheers,
Steve

I'm considering electric for my next commuter too because of the minimal maintenance and also my electricity is virtually free with a large solar array. Electric car for work, ICE for fun on the weekends.... The only catch is there seems to be nothing in the mid range performance-wise at the moment. There are a few super slow shopping trolleys and then the very fast but very expensive Teslas.

I understand the UK ban on using asbestos was late 1999. When did they stop using asbestos in brake pads etc in practice? Was it some years before 1999?
I have a late 90's vehicle in transit from the UK at the moment.

Thanks Justin. I found Ian Galliers on Milweb. Is Andrew Baker a member here?
Thanks for the insight, I knew the track was unique to the Stormer series, but didn't know the road wheels are shared with the CVRTs. I'll have a look on thexmod site. I also just discovered cvrtparts.com

Thanks everyone for your replies.
Richard... that's a great find, that place looks promising and not too far away by Australian standards.
I will get some photos up soon. I have not seen it in person, a friend inspected it for me and took some pics. I decided on the better offering available for the exact same reasoning that spares are going to be hard to find, especially over here.
The big question is, where to find spares? Withams don't have anything. I've emailed Marcus Glenn and Green Machine Surplus. Where else to look? Does anyone know of any spares around?